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Heida Diefenderfer

Heida Diefenderfer

Battelle Marine Sciences Laboratory
1529 West Sequim Bay Road
Sequim, WA 98382
(360) 681-3619

Biography

Dr. Heida Diefenderfer is a restoration ecologist with the Pacific Northwest National Laboratory (PNNL) Coastal Assessment and Restoration group at the Marine Sciences Laboratory in Sequim, Washington. She conducts research and restoration in a variety of coastal and riverine ecosystems, in particular floodplain wetlands and eelgrass meadows. Currently, she is participating in research and adaptive management for the recovery of Endangered Species Act-listed fish and birds and monitoring the effectiveness of habitat restoration actions. She earned her doctorate in 2007 from the University of Washington, College of Forest Resources, with research focusing on tidal Sitka spruce swamps of the lower Columbia River floodplain. Dr. Diefenderfer pursued forest ecology at Reed College (B.A., Biology, 1991) and Native American studies and writing at The Evergreen State College (B.A. Liberal Arts, 1997). She also holds an M.A. in English from Western Washington University (1999). Since 1990, she has performed research and writing for many governmental agencies and non-governmental organizations in the areas of ecosystem conservation and restoration, sustainable forest and fisheries management, and the recovery of threatened and endangered species.

Education and Credentials

  • B.A. Biology (minor: Cognitive Science), Reed College, 1991
  • B.A. Liberal Arts (Native American Studies/Professional Writing), The Evergreen State College, 1997
  • M.A. English, Western Washington University, 1999
  • Ph.D. Forest Resources (Ecosystem Analysis), University of Washington, 2007

Affiliations and Professional Service

  • Ecological Society of America
  • Society for Ecological Restoration International

PNNL Publications

2016

  • Diefenderfer H.L., A.B. Borde, I.A. Sinks, V.I. Cullinan, and S.A. Zimmerman. 2016. Columbia Estuary Ecosystem Restoration Program: Restoration Design Challenges for Topographic Mounds, Channel Outlets, and Reed Canarygrass. PNNL-24676. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., G.E. Johnson, R.M. Thom, K.E. Buenau, L.A. Weitkamp, C.M. Woodley, and A.B. Borde, et al. 2016. "Evidence-based Evaluation of the Cumulative Effects of Ecosystem Restoration." Ecosphere 7, no. 3:e01242. PNNL-SA-104585. doi:10.1002/ecs2.1242
  • Jay D.A., A.B. Borde, and H.L. Diefenderfer. 2016. "Tidal-Fluvial and Estuarine Processes in the Lower Columbia River: II. Water Level Models, Floodplain Wetland Inundation, and System Zones." Estuaries and Coasts 39, no. 5:1299-1324. PNNL-SA-123352. doi:10.1007/s12237-016-0082-4

2015

  • Coleman A.M., H.L. Diefenderfer, D.L. Ward, and A.B. Borde. 2015. "A Spatially Based Area-Time Inundation Index Model Developed to Assess Habitat Opportunity in Tidal-Fluvial Wetlands and Restoration Sites." Ecological Engineering 82. PNNL-SA-98413. doi:10.1016/j.ecoleng.2015.05.006
  • Diefenderfer H.L. 2015. "Coastal Conservation." Marine Biology Research 11, no. 4:446-448. PNNL-SA-107702. doi:10.1080/17451000.2014.999095
  • Jay D.A., K. Leffler, H.L. Diefenderfer, and A.B. Borde. 2015. "Tidal-Fluvial and Estuarine Processes in the Lower Columbia River: I. Along-channel Water Level Variations, Pacific Ocean to Bonneville Dam." Estuaries and Coasts 38, no. 2:415-433. PNNL-SA-98787. doi:10.1007/s12237-014-9819-0
  • Tian B., Y. Zhou, R.M. Thom, H.L. Diefenderfer, and Q. Yuan. 2015. "Detecting wetland changes in Shanghai, China using FORMOSAT and Landsat TM imagery." Journal of Hydrology 529, no. Part 1:1-10. PNNL-SA-112617. doi:10.1016/j.jhydrol.2015.07.007

2013

  • Coleman A.M., G.E. Johnson, A.B. Borde, H.L. Diefenderfer, N.K. Sather, T.E. Seiple, and J.A. Serkowski. 2013. The Oncor Geodatabase for the Columbia Estuary Ecosystem Restoration Program: Annual Report, 2012. PNNL-22405. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., A.B. Borde, and V.I. Cullinan. 2013. A Synthesis of Environmental and Plant Community Data for Tidal Wetland Restoration Planning in the Lower Columbia River and Estuary. PNNL-22667. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., G.E. Johnson, R.M. Thom, A.B. Borde, C.M. Woodley, L.A. Weitkamp, and K.E. Buenau, et al. 2013. An Evidence-Based Evaluation of the Cumulative Effects of Tidal Freshwater and Estuarine Ecosystem Restoration on Endangered Juvenile Salmon in the Columbia River: Final Report. PNNL-23037. Richland, WA: Pacific Northwest National Laboratory.
  • Ke Y., A.M. Coleman, and H.L. Diefenderfer. 2013. "Temporal Land Cover Analysis for Net Ecosystem Improvement." Ecohydrology & Hydrobiology 13, no. 1:84-96. PNNL-SA-93740.
  • Sather N.K., A.B. Borde, H.L. Diefenderfer, J.A. Serkowski, A.M. Coleman, and G.E. Johnson. 2013. The Oncor Geodatabase for the Columbia Estuary Ecosystem Restoration Program: Handbook of Data Reduction Procedures, Workbooks, and Exchange Templates. PNNL-22922. Richland, WA: Pacific Northwest National Laboratory.

2012

  • Borde A.B., V.I. Cullinan, H.L. Diefenderfer, R.M. Thom, R.M. Kaufmann, S.A. Zimmerman, and J. Sagar, et al. 2012. Lower Columbia River and Estuary Ecosystem Restoration Program Reference Site Study: 2011 Restoration Analysis - FINAL REPORT. PNNL-21433. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., G.E. Johnson, J.R. Skalski, S.A. Breithaupt, and A.M. Coleman. 2012. "Application of the Diminishing Returns Concept in the Hydroecologic Restoration of Riverscapes." Landscape Ecology 27, no. 5:671-682. PNNL-SA-66973. doi:10.1007/s10980-012-9713-8
  • Johnson G.E., H.L. Diefenderfer, R.M. Thom, G.C. Roegner, B.D. Ebberts, J.R. Skalski, and A.B. Borde, et al. 2012. Evaluation of Cumulative Ecosystem Response to Restoration Projects in the Lower Columbia River and Estuary, 2010. PNNL-20296. Richland, WA: Pacific Northwest National Laboratory.
  • Thom R.M., H.L. Diefenderfer, J. Vavrinec, and A.B. Borde. 2012. "Restoring Resiliency: Case Studies from Pacific Northwest Estuarine Eelgrass (Zostera marina L.) Ecosystems." Estuaries and Coasts 35, no. 1:78-91. PNNL-SA-68902. doi:10.1007/s12237-011-9430-6

2011

  • Diefenderfer H.L., G.E. Johnson, N.K. Sather, J.R. Skalski, E.M. Dawley, A.M. Coleman, and K.G. Ostrand, et al. 2011. Evaluation of Life History Diversity, Habitat Connectivity, and Survival Benefits Associated with Habitat Restoration Actions in the Lower Columbia River and Estuary, Annual Report 2010. PNNL-20295 Final. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., R.M. Thom, G.E. Johnson, J.R. Skalski, K.A. Vogt, B.D. Ebberts, and G.C. Roegner, et al. 2011. "A Levels-of-Evidence Approach for Assessing Cumulative Ecosystem Response to Estuary and River Restoration Programs." Ecological Restoration 29, no. 1-2:111-132. PNNL-SA-55734.
  • Thom R.M., H.L. Diefenderfer, J.E. Adkins, C. Judd, M.G. Anderson, K.E. Buenau, and A.B. Borde, et al. 2011. "Guidelines, processes and tools for coastal ecosystem restoration, with examples from the United States." Plankton & Benthos Research 5, no. Supplement:185-201. PNNL-SA-73076. doi:10.3800/pbr.5.185

2010

  • Diefenderfer H.L., G.E. Johnson, N.K. Sather, J.R. Skalski, E.M. Dawley, and A.M. Coleman. 2010. Evaluation of Life History Diversity, Habitat Connectivity, and Survival Benefits Associated with Habitat Restoration Actions in the Lower Columbia River and Estuary, Annual Report 2009. PNNL-19410. Richland, WA: Pacific Northwest National Laboratory.
  • Johnson G.E., H.L. Diefenderfer, A.B. Borde, A.J. Bryson, A. Cameron, A.M. Coleman, and C. Corbett, et al. 2010. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Lower Columbia River and Estuary, 2009. PNNL-19440. Richland, WA: Pacific Northwest National Laboratory.

2009

  • Diefenderfer H.L., K.L. Sobocinski, R.M. Thom, C.W. May, A.B. Borde, S.L. Southard, and J. Vavrinec, et al. 2009. "Multiscale Analysis of Restoration Priorities for Marine Shoreline Planning." Environmental Management 44, no. 4:712-731. PNWD-SA-8063. doi:10.1007/s00267-009-9298-4
  • Johnson G.E., H.L. Diefenderfer, A.B. Borde, E.M. Dawley, B.D. Ebberts, G.C. Roegner, and M.T. Russell, et al. 2009. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Lower Columbia River and Estuary, 2008. PNNL-18677. Richland, WA: Pacific Northwest National Laboratory.

2008

  • Diefenderfer H.L., A.M. Coleman, A.B. Borde, and I.A. Sinks. 2008. "Hydraulic Geometry and Microtopography of Tidal Freshwater Forested Wetlands and Implications for Restoration, Columbia River, U.S.A." International Journal of Ecohydrology & Hydrobiology 8, no. 2-4:339-361. PNNL-SA-59093. doi:10.2478/v10104-009-0027-7
  • Diefenderfer H.L., and D.R. Montgomery. 2008. "Pool spacing, channel morphology, and the restoration of tidal forested wetlands of the Columbia River, U.S.A." Restoration Ecology 17, no. 1:158-168. PNNL-SA-55592. doi:10.1111/j.1526-100X.2008.00449.x
  • Johnson G.E., and H.L. Diefenderfer. 2008. Facilitation of the Estuary/Ocean Subgroup for Federal Research, Monitoring, and Evaluation, FY08 Annual Report. PNNL-17811. Richland, WA: Pacific Northwest National Laboratory.
  • Johnson G.E., H.L. Diefenderfer, A.B. Borde, E.M. Dawley, B.D. Ebberts, D.A. Putman, and G.C. Roegner, et al. 2008. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2007. PNNL-17437. Richland, WA: Pacific Northwest National Laboratory.
  • Johnson G.E., H.L. Diefenderfer, B.D. Ebberts, C. Tortorici, T. Yerxa, J. Leary, and J.R. Skalski. 2008. Research, Monitoring, and Evaluation for the Federal Columbia River Estuary Program. PNNL-17300. Richland, WA: Pacific Northwest National Laboratory.
  • Roegner G.C., H.L. Diefenderfer, A.B. Borde, R.M. Thom, E.M. Dawley, A.H. Whiting, and S.A. Zimmerman, et al. 2008. Protocols for Monitoring Habitat Restoration Projects in the Lower Columbia River and Estuary. PNNL-15793. Richland, WA: Pacific Northwest National Laboratory.

2007

  • Johnson G.E., A.B. Borde, E. Dawley, H.L. Diefenderfer, B.D. Ebberts, D.A. Putman, and G.C. Roegner, et al. 2007. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2006. PNNL-16561. Richland, WA: Pacific Northwest National Laboratory.
  • Johnson G.E., and H.L. Diefenderfer. 2007. Facilitation of the Estuary/Ocean Subgroup for Research, Monitoring, and Evaluation, FY07 Annual Report. PNNL-16947. Richland, WA: Pacific Northwest National Laboratory.

2006

  • Diefenderfer H.L., R.M. Thom, A.B. Borde, G.C. Roegner, A.H. Whiting, G.E. Johnson, and E. Dawley, et al. 2006. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005. PNNL-15934. Richland, WA: Pacific Northwest National Laboratory.

2005

  • Diefenderfer H.L., C. Roegner, R.M. Thom, E.M. Dawley, A.H. Whiting, G.E. Johnson, and K.L. Sobocinski, et al. 2005. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2004. PNNL-15102. Richland, WA: Pacific Northwest National Laboratory.
  • Diefenderfer H.L., R.M. Thom, and K. Hofseth. 2005. "A Framework for Risk Analysis for Ecological Restoration Projects in the U.S. Army Corps of Engineers." In Economics and Ecological Risk Assessment: Applications to Watershed Management, Environmental and Ecological Risk Assessment Series, edited by Randall J. F. Bruins, Matthew T. Heberling. 57-105. Boca Raton, Florida:CRC Press. PNNL-SA-37959.
  • Thom R.M., G.D. Williams, and H.L. Diefenderfer. 2005. "Balancing the Need to Develop Coastal Areas with the Desire for an Ecologically Functioning Coastal Environment: Is Net Ecosystem Improvement Possible?." Restoration Ecology 13, no. 1:193-203. PNWD-SA-6354. doi:10.1111/j.1526-100X.2005.00024.x

2004

  • Diefenderfer H.L., S.L. Sargeant, R.M. Thom, A.B. Borde, P.F. Gayaldo, C.A. Curtis, and B.L. Court, et al. 2004. "Demonstration Dock Designed to Benefit Eelgrass Habitat Restoration (Washington)." Ecological Restoration 22, no. 2:140-141. PNWD-SA-6315.

2003

  • Diefenderfer H.L., S.L. Sargeant, R.M. Thom, A.B. Borde, P.F. Gayaldo, C.A. Curtis, and B.L. Court, et al. 2003. "Dock Design to Facilitate the Restoration of Eelgrass in Port Townsend Bay, Washington." In Assembling the Pieces - Restoration, Design and Landscape Ecology: Proceedings of the Annual Conference of the Society for Ecological Restoration International, November 19-22, 2003, Austin, Texas. Tucson, Arizona:Society for Ecological Restoration International. PNWD-SA-6035.
  • Sargeant S.L., R.M. Thom, H.L. Diefenderfer, A.B. Borde, and J.A. Southard. 2003. "Evaluation of Methods to Increase Light under Large Overwater Structures." In 2003 Georgia Basin/Puget Sound Research Conference Proceedings, Vancouver, BC, March 31 - April 3, 2003, edited by TW Droscher and DA Fraser. Olympia, Washington:Puget Sound Action Team. PNNL-SA-37320.
  • Southard J.A., G.D. Williams, S.L. Sargeant, H.L. Diefenderfer, and M.L. Blanton. 2003. "Using Advanced Scientific Diving Technologies to Assess the Underwater Environment." In 2003 Georgia Basin/Puget Sound Research Conference Proceedings, Vancouver, BC, March 31 - April 3, 2003, edited by TW Droscher and DA Fraser. Olympia, Washington:Puget Sound Action Team. PNNL-SA-37344.

2002

  • Blanton S.L., R.M. Thom, A.B. Borde, H.L. Diefenderfer, and J.A. Southard. 2002. Evaluation of Methods to Increase Light Under Ferry Terminals. PNNL-13714. Richland, WA: Pacific Northwest National Laboratory.

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